Naser al-Din Shah's One Gheran Coin

Silver Coin
Era: Qajar Period, Persia
Date: 19th Century
Value: One Gheran, or 20 Shahi or 1000 Dinar
Sources: [1], [2], [3], [4]
سکه یک قرانی ناصرالدین شاه قاجار با نقش عقاب دو سر
The double-headed eagle is a rare example of the symbols used in Qajar coins. It is common symbol in heraldry and vexillology. It is most commonly associated with the Byzantine Empire, the Holy Roman Empire, the Russian Empire and their successor states. In Byzantine heraldry, the heads represent the dual sovereignty of the Emperor (secular and religious) and/or dominance of the Byzantine Emperors over both East and West. In the Holy Roman Empire's heraldry, it represented the church and the state. Several Eastern European nations adopted it from the Byzantines and continue to use it as their national symbol to this day. The images bellow are the coat of arms of the Holly Roman Empire of The German People, and the coat of arms of the Russian Empire.